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Flashcards on Ecology: Food Chains and Webs
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What is a food chain?
A food chain is a diagram that shows the flow of energy from one organism to another in an ecosystem.
What is a producer in a food chain?
A producer is an organism that makes its own food using sunlight, water, and carbon dioxide through a process called photosynthesis.
What is a consumer in a food chain?
A consumer is an organism that obtains its energy by eating other organisms.
What is a primary consumer?
A primary consumer is an organism that eats producers.
What is a secondary consumer?
A secondary consumer is an organism that eats primary consumers.
What is a tertiary consumer?
A tertiary consumer is an organism that eats secondary consumers.
What is a decomposer in a food chain?
A decomposer is an organism that breaks down dead organisms and waste, releasing nutrients back into the ecosystem.
What is a food web?
A food web is a diagram that shows the interconnected food chains in an ecosystem.
What is an energy pyramid?
An energy pyramid is a diagram that shows the flow of energy through different trophic levels in an ecosystem.
What is the ultimate source of energy in a food chain or web?
The ultimate source of energy in a food chain or web is the sun.
What happens to the amount of energy as you move up the trophic levels in a food chain or web?
The amount of energy decreases as you move up the trophic levels due to energy loss at each level.
What is a trophic level?
A trophic level is a position in a food chain or web that indicates an organism's position in the transfer of energy.
What is a primary producer?
A primary producer refers to autotrophic organisms in an ecosystem, usually green plants and algae.
What is a top predator?
A top predator is an organism that is not typically preyed upon by other organisms and is at the top of the food chain.
What is the role of decomposers in an ecosystem?
Decomposers play a vital role in breaking down dead organisms and recycling nutrients back into the ecosystem.
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Test Your Knowledge
What is the difference between a food chain and a food web?
A food chain is simpler than a food web.
A food web is typically limited to a single ecosystem.
A food web shows interconnected food chains.
A food chain only involves producers and consumers.
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Which organism is a primary consumer?
Rabbit
Hawk
Snake
Spider
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What happens to energy as it moves up the trophic levels in a food chain or web?
Energy decreases
Energy increases
Energy stays the same
Energy fluctuates
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Which organism is a producer?
Grass
Lion
Wolf
Bear
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What is the ultimate source of energy in a food chain or web?
Water
Air
Sun
Soil
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Which organism is a secondary consumer?
Mouse
Frog
Grasshopper
Snake
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What is the role of decomposers in an ecosystem?
To produce oxygen
To capture sunlight
To break down dead organisms
To consume primary consumers
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What is a trophic level?
A position in a food chain or web
A type of consumer
A type of producer
A type of decomposer
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Which organism is a tertiary consumer?
Beetle
Hawk
Mouse
Fish
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What is an energy pyramid?
A pyramid-shaped ecosystem
A diagram showing energy flow in trophic levels
A structure made of energy
A unit of energy measurement
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